Phoenix is getting her struts fitted.

IMG_5094Click to enlarge.

The ends of the struts that are resting on the kamarion still need to be trimmed so that they will drop down and position themselves in the center of the yokes.  After that, welding them to the yokes should be easy.  Keys will be made to drop through the slots in the yokes to secure the lock around the kamarion.  My conjecture is that the two holes evident on Orsova kamarion were for crosspins to lock the keys in place, and also prevent any lateral movement of the yokes.  Pins that pass through the projecting studs on the sideplates should retain the rear of the struts nicely.

All this fancy, just to claim the title of “take-apart”.  Such is the price of extending the design themes apparent in the artifacts.


And the welding goes fine.  We do TIG welding as an analog for forge welding.  I never weld things together with modern techniques that could not also be done with ancient ones.  An analog is an analog is an analog.


Now for clean-up and finish work.  And a stout key and pin.  All in a day’s work at the little catapult factory.


As usual, I ran out of sanding discs.  Later, ye pesky burnishing bug!


IMG_5111Click to enlarge.   Rebecca says it’s worth it!

There are just the keys and cross pins left to do and then the struts will be done.  I left the sagma (saddle) deliberately long to help stabilize the stock sans the lower struts.  We’ll see how well that all works out.


And finally, the keys and their pins are installed.


I must admit, those cotter pins are making the authenticity gremlins that ricochet around inside my skull, a tad analeptic.  Solid pins of somewhat larger diameter will be the thing.

That will be for another time. Next we move on to the washers and vernier plates.


Okay!  I can’t stand it any longer. Now is another time.


A modern 20 penny nail, non-galvanized of course, gets the job done in the role of analog for the Roman version.  Good enough for our purposes, anyway.

And that, ballista fans, is my explanation for those two little holes seen in the kamarion of the Orsova artifacts.  Maybe the Romans did it some other way.  But not for my money.




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